<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box{
            width: 200px;
            height: 200px;
            background: skyblue;
        }
    </style>
</head>
<body>
    <div class="box">

    </div>
    <script>
        var oBox=document.querySelector(".box");
        oBox.onclick=function(evt){
            var e=evt||window.event;

            console.log(e.pageX,e.pageY);

            console.log(e.clientX,e.clientY);

            console.log(e.offsetX,e.offsetY);

            console.log(e.screenX,e.screenY);
        }
    </script>
</body>
</html>